Since the development of the above recursive SfM technique, we have
explored its interaction as a module in other vision frameworks. The
module is fed 2D data and computes 3D estimates. However, it is not
necessarily a processing dead-end. One can consider SfM as a
sub-component in larger vision systems with multiple loops. Thus, SfM
can feed its results back to lower level vision processes or forward
to higher level modules.